Melatonin improves waterlogging tolerance of malus baccata (Linn.) borkh. seedlings by maintaining aerobic respiration, photosynthesis and ROS migration

Xiaodong Zheng, Jingzhe Zhou, Dun Xian Tan, Na Wang, Lin Wang, Dongqian Shan, Jin Kong

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Waterlogging, one of the notorious abiotic stressors, retards the growth of apple plants and reduces their production. Thus, it is an urgent agenda for scientists to identify the suitable remedies for this problem. In the current study, we found that melatonin significantly improved the tolerance of apple seedlings against waterlogging stress. This was indicated by the reduced chlorosis and wilting of the seedlings after melatonin applications either by leaf spray or root irrigation. The mechanisms involve in that melatonin functions to maintain aerobic respiration, preserves photosynthesis and reduces oxidative damage of the plants which are under waterlogging stress. Melatonin application also enhances the gene expression of its synthetic enzymes (MbT5H1, MbAANAT3, MbASMT9) and increases melatonin production. This is the first report of a positive feedback that exogenous melatonin application promotes the melatonin synthesis in plants. A post-transcriptional regulation apparently participated in this regulation. When exogenous melatonin meets the requirement of the plants it is found that the protein synthesis of MbASMT9 was suppressed. Taken together, the results showed that melatonin was an effective molecule to protect plant, particularly apple plant, against waterlogging stress.

Original languageEnglish (US)
Article number483
JournalFrontiers in Plant Science
Volume8
DOIs
StatePublished - Apr 5 2017

Fingerprint

Malus baccata
aerobiosis
melatonin
flooded conditions
photosynthesis
seedlings
apples
wilting
plant damage
chlorosis
preserves
protein synthesis
irrigation

Keywords

  • Aerobic respiration
  • Melatonin
  • Oxidative stress
  • Photosynthesis
  • ROS
  • Waterlogging

ASJC Scopus subject areas

  • Plant Science

Cite this

Melatonin improves waterlogging tolerance of malus baccata (Linn.) borkh. seedlings by maintaining aerobic respiration, photosynthesis and ROS migration. / Zheng, Xiaodong; Zhou, Jingzhe; Tan, Dun Xian; Wang, Na; Wang, Lin; Shan, Dongqian; Kong, Jin.

In: Frontiers in Plant Science, Vol. 8, 483, 05.04.2017.

Research output: Contribution to journalArticle

Zheng, Xiaodong ; Zhou, Jingzhe ; Tan, Dun Xian ; Wang, Na ; Wang, Lin ; Shan, Dongqian ; Kong, Jin. / Melatonin improves waterlogging tolerance of malus baccata (Linn.) borkh. seedlings by maintaining aerobic respiration, photosynthesis and ROS migration. In: Frontiers in Plant Science. 2017 ; Vol. 8.
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